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Clockwork Higgs portal model for freeze-in dark matter

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Clockwork Higgs portal model for freeze-in dark matter. / Kim, Jinsu; McDonald, John.
In: Physical Review D, Vol. 98, No. 2, 24.07.2018, p. 023553.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Kim, J & McDonald, J 2018, 'Clockwork Higgs portal model for freeze-in dark matter', Physical Review D, vol. 98, no. 2, pp. 023553. https://doi.org/10.1103/PhysRevD.98.023533

APA

Kim, J., & McDonald, J. (2018). Clockwork Higgs portal model for freeze-in dark matter. Physical Review D, 98(2), 023553. https://doi.org/10.1103/PhysRevD.98.023533

Vancouver

Kim J, McDonald J. Clockwork Higgs portal model for freeze-in dark matter. Physical Review D. 2018 Jul 24;98(2):023553. doi: 10.1103/PhysRevD.98.023533

Author

Kim, Jinsu ; McDonald, John. / Clockwork Higgs portal model for freeze-in dark matter. In: Physical Review D. 2018 ; Vol. 98, No. 2. pp. 023553.

Bibtex

@article{8e986a384bc44f5cb00b51906a40a2b2,
title = "Clockwork Higgs portal model for freeze-in dark matter",
abstract = "The clockwork mechanism can explain interactions which are dimensionally very weak without the need for very large mass scales. We present a model in which the clockwork mechanism generates the very small Higgs portal coupling and dark matter particle mass necessary to explain cold dark matter via the freeze-in mechanism. We introduce a TeV-scale scalar clockwork sector which couples to the Standard Model via the Higgs portal. The dark matter particle is the lightest scalar of the clockwork sector. We show that the freeze-in mechanism is dominated by decay of the heavy clockwork scalars to light dark matter scalars and Higgs bosons. In the model considered, we find that freeze-in dark matter is consistent with the clockwork mechanism for global charge q in the range 2≲q≲4 when the number of massive scalars is in the range 10≤N≤20. The dark matter scalar mass and portal coupling are independent of q and N. For a typical TeV-scale clockwork sector, the dark matter scalar mass is predicted to be of the order of a MeV.",
author = "Jinsu Kim and John McDonald",
year = "2018",
month = jul,
day = "24",
doi = "10.1103/PhysRevD.98.023533",
language = "English",
volume = "98",
pages = "023553",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "2",

}

RIS

TY - JOUR

T1 - Clockwork Higgs portal model for freeze-in dark matter

AU - Kim, Jinsu

AU - McDonald, John

PY - 2018/7/24

Y1 - 2018/7/24

N2 - The clockwork mechanism can explain interactions which are dimensionally very weak without the need for very large mass scales. We present a model in which the clockwork mechanism generates the very small Higgs portal coupling and dark matter particle mass necessary to explain cold dark matter via the freeze-in mechanism. We introduce a TeV-scale scalar clockwork sector which couples to the Standard Model via the Higgs portal. The dark matter particle is the lightest scalar of the clockwork sector. We show that the freeze-in mechanism is dominated by decay of the heavy clockwork scalars to light dark matter scalars and Higgs bosons. In the model considered, we find that freeze-in dark matter is consistent with the clockwork mechanism for global charge q in the range 2≲q≲4 when the number of massive scalars is in the range 10≤N≤20. The dark matter scalar mass and portal coupling are independent of q and N. For a typical TeV-scale clockwork sector, the dark matter scalar mass is predicted to be of the order of a MeV.

AB - The clockwork mechanism can explain interactions which are dimensionally very weak without the need for very large mass scales. We present a model in which the clockwork mechanism generates the very small Higgs portal coupling and dark matter particle mass necessary to explain cold dark matter via the freeze-in mechanism. We introduce a TeV-scale scalar clockwork sector which couples to the Standard Model via the Higgs portal. The dark matter particle is the lightest scalar of the clockwork sector. We show that the freeze-in mechanism is dominated by decay of the heavy clockwork scalars to light dark matter scalars and Higgs bosons. In the model considered, we find that freeze-in dark matter is consistent with the clockwork mechanism for global charge q in the range 2≲q≲4 when the number of massive scalars is in the range 10≤N≤20. The dark matter scalar mass and portal coupling are independent of q and N. For a typical TeV-scale clockwork sector, the dark matter scalar mass is predicted to be of the order of a MeV.

U2 - 10.1103/PhysRevD.98.023533

DO - 10.1103/PhysRevD.98.023533

M3 - Journal article

VL - 98

SP - 023553

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 2

ER -